TU Darmstadt / ULB / TUbiblio

Fluoropolymer-Containing Opals and Inverse Opals by Melt-Shear Organization

Kredel, Julia and Dietz, Christian and Gallei, Markus (2019):
Fluoropolymer-Containing Opals and Inverse Opals by Melt-Shear Organization.
In: Molecules, 24 (2), MDPI, ISSN 1420-3049,
DOI: 10.3390/molecules24020333,
[Online-Edition: https://doi.org/10.3390/molecules24020333],
[Article]

Abstract

The preparation of highly ordered colloidal architectures has attracted significant attention and is a rapidly growing field for various applications, e.g., sensors, absorbers, and membranes. A promising technique for the preparation of elastomeric inverse opal films relies on tailored core/shell particle architectures and application of the so-called melt-shear organization technique. Within the present work, a convenient route for the preparation of core/shell particles featuring highly fluorinated shell materials as building blocks is described. As particle core materials, both organic or inorganic (SiO2) particles can be used as a template, followed by a semi-continuous stepwise emulsion polymerization for the synthesis of the soft fluoropolymer shell material. The use of functional monomers as shell-material offers the possibility to create opal and inverse opal films with striking optical properties according to Bragg’s law of diffraction. Due to the presence of fluorinated moieties, the chemical resistance of the final opals and inverse opals is increased. The herein developed fluorine-containing particle-based films feature a low surface energy for the matrix material leading to good hydrophobic properties. Moreover, the low refractive index of the fluoropolymer shell compared to the core (or voids) led to excellent optical properties based on structural colors. The herein described fluoropolymer opals and inverse opals are expected to pave the way toward novel functional materials for application in fields of coatings and optical sensors.

Item Type: Article
Erschienen: 2019
Creators: Kredel, Julia and Dietz, Christian and Gallei, Markus
Title: Fluoropolymer-Containing Opals and Inverse Opals by Melt-Shear Organization
Language: English
Abstract:

The preparation of highly ordered colloidal architectures has attracted significant attention and is a rapidly growing field for various applications, e.g., sensors, absorbers, and membranes. A promising technique for the preparation of elastomeric inverse opal films relies on tailored core/shell particle architectures and application of the so-called melt-shear organization technique. Within the present work, a convenient route for the preparation of core/shell particles featuring highly fluorinated shell materials as building blocks is described. As particle core materials, both organic or inorganic (SiO2) particles can be used as a template, followed by a semi-continuous stepwise emulsion polymerization for the synthesis of the soft fluoropolymer shell material. The use of functional monomers as shell-material offers the possibility to create opal and inverse opal films with striking optical properties according to Bragg’s law of diffraction. Due to the presence of fluorinated moieties, the chemical resistance of the final opals and inverse opals is increased. The herein developed fluorine-containing particle-based films feature a low surface energy for the matrix material leading to good hydrophobic properties. Moreover, the low refractive index of the fluoropolymer shell compared to the core (or voids) led to excellent optical properties based on structural colors. The herein described fluoropolymer opals and inverse opals are expected to pave the way toward novel functional materials for application in fields of coatings and optical sensors.

Journal or Publication Title: Molecules
Volume: 24
Number: 2
Publisher: MDPI
Divisions: 07 Department of Chemistry
07 Department of Chemistry > Organ Chemistry
Date Deposited: 03 Nov 2019 20:55
DOI: 10.3390/molecules24020333
Official URL: https://doi.org/10.3390/molecules24020333
URN: urn:nbn:de:tuda-tuprints-92330
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details